Section 3 Electrical Adjustments - Sony ICF-C12L Service Manual

SECTION 3
ELECTRICAL ADJUSTMENTS
3-1. AEP MODEL
Setting:
BAND switch: LW
AM rf_ signal
genera tor
Put the lead-wire
antenna close to
(range 1.5—10V ac)
speaker terminal
e Repeat the procedures in each adjustment
several times, and the frequency coverage and
tracking adjustments should be finally done by
the trimmer capacitors.
FM TRACKING ADJUSTMENT
Adjust for a maximum reading
108.5 MHz.
(108 MHz)
87.1 MHz
(87.5 MHz)
( ): in West Germany
FM FREQUENCY COVERAGE
ADJUSTMENT
Adjust for a maximum reading
on VOM (1) .
108.5. MHz.
(108 MHz)
87.1 MHz
(87.5 MHz)
( ): in West Germany
—CT-4
L3
ICF-C12L
LW TRACKING ADJUSTMENT
- Adjust fora maximum reading
on VOM (1)
. 250 kHz Peco 60 kHz
i cer: Se os Sane
Adjust for a maximum reading
on VOM (1)
FM IF ALIGNMENT 1
(10.7 MHz with modulation)
AEP MODEL
LW FREQUENCY COVERAGE
ADJUSTMENT
Adjust for a maximum reading
on VOM (1 Om
265 kHz
"14s ee
on VOM (1).
TS
Adjust for OV reading on
VOM Q)
FM IF ALIGNMENT 2
(10.7 MHz with no modulation)
LW IF. ALIGNMENT
Adjust for a maximum reading
455 kHz
VOM @)
(range: 1 V dc)